Talk test basically determine how intense your activity is by gauging how much you can talk during that activity
For example,you can still talk while you're jogging, meanwhile you can't talk at all when you're sprinting. This means that sprinting is a far more intense activity than jogging
A psychiatrist who studies mental illness as only a
symptom of a physical disorder could most accurately be called a somatist. By
definition somatist came from the term ‘soma’ which means ‘body’. The study
only covers anything related to physical diseases as connected to the brain
(e.g. Somatoform disorder).